/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package br.edu.ifrn.Servlets;

import br.edu.ifrn.Classes.Curso;
import br.edu.ifrn.Classes.Turma;
import br.edu.ifrn.Dao.CursoDao;
import br.edu.ifrn.Dao.TurmaDao;
import java.io.IOException;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Edmilson
 */
@WebServlet(name = "GerenciarTurma", urlPatterns = {"/GerenciarTurma"})
public class GerenciarTurma extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        String acao = request.getParameter("acao");

        if (acao.equals("InserirTurma")) {
            String nome = request.getParameter("turma");
            int numeroSala = Integer.parseInt(request.getParameter("numeroSala"));
            int qtdAlunos = Integer.parseInt(request.getParameter("qtdAlunos"));
            int idCurso = Integer.parseInt(request.getParameter("select"));

            Turma turma = new Turma();
            turma.setNome(nome);
            turma.setNumeroSala(numeroSala);
            turma.setQtdAlunos(qtdAlunos);
            turma.setIdCurso(idCurso);

            TurmaDao dao = new TurmaDao();
            dao.InserirTurma(turma);

            HttpSession session = request.getSession();
            List<Turma> turmas = dao.getLista();
            session.setAttribute("turmas", turmas);

            RequestDispatcher rd = request.getRequestDispatcher("/Adm/PaginaTurma.jsp");
            rd.forward(request, response);
        } else if (acao.equals("removeTurma")) {
            int idTurma = Integer.parseInt(request.getParameter("idTurma"));

            Turma turma = new Turma();
            turma.setIdTurma(idTurma);

            TurmaDao turmaDao = new TurmaDao();
            turmaDao.removeTurma(turma);

            HttpSession session = request.getSession();
            List<Turma> turmas = turmaDao.getLista();
            session.setAttribute("turmas", turmas);

            RequestDispatcher rd = request.getRequestDispatcher("/Adm/PaginaTurma.jsp");
            rd.forward(request, response);

        } else if (acao.equals("editarTurma")) {
            int idTurma = Integer.parseInt(request.getParameter("idTurma"));
            String nome = request.getParameter("turma");
            int numeroSala = Integer.parseInt(request.getParameter("numeroSala"));
            int qtdAlunos = Integer.parseInt(request.getParameter("qtdAlunos"));
            int idCurso = Integer.parseInt(request.getParameter("select"));

            Turma turma = new Turma();
            turma.setIdTurma(idTurma);
            turma.setNome(nome);
            turma.setNumeroSala(numeroSala);
            turma.setQtdAlunos(qtdAlunos);
            turma.setIdCurso(idCurso);

            TurmaDao turmaDao = new TurmaDao();
            turmaDao.editarTurma(turma);

            HttpSession session = request.getSession();
            List<Turma> turmas = turmaDao.getLista();
            session.setAttribute("turmas", turmas);

            RequestDispatcher rd = request.getRequestDispatcher("/Adm/PaginaTurma.jsp");
            rd.forward(request, response);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String acao = request.getParameter("acao");
        if (acao == null) {
            acao = "''''";
        }
        if (acao.equals("removeTurma")) {
            int idTurma = Integer.parseInt(request.getParameter("idTurma"));

            Turma turma = new Turma();
            turma.setIdTurma(idTurma);

            TurmaDao turmaDao = new TurmaDao();
            turmaDao.removeTurma(turma);

            HttpSession session = request.getSession();
            List<Turma> turmas = turmaDao.getLista();
            session.setAttribute("turmas", turmas);
            
            CursoDao cursoDao = new CursoDao();
            List<Curso> cursos = cursoDao.getLista();
            session.setAttribute("cursos", cursos);

            RequestDispatcher rd = request.getRequestDispatcher("/Adm/PaginaTurma.jsp");
            rd.forward(request, response);

        } else {

            HttpSession session = request.getSession();
            TurmaDao turmaDao = new TurmaDao();
            CursoDao cursoDao = new CursoDao();

            List<Turma> turmas = turmaDao.getLista();
            List<Curso> cursos = cursoDao.getLista();

            session.setAttribute("turmas", turmas);
            session.setAttribute("cursos", cursos);

            RequestDispatcher rd = request.getRequestDispatcher("/Adm/PaginaTurma.jsp");
            rd.forward(request, response);
        }
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
